28/05/1999 Leonardo da Vinci's masterpiece The Last Supper is put back on display
The da Vinci puzzle: Restoring The Last Supper - BBC News
The Last Supper Pre and Post Restoration
Can "The Last Supper" Be Saved? Leonardo da Vinci
The Last Supper by Leonardo da Vinci in 2 minutes
The Last Supper
Restoration of the painting took 21 years and, in 1999, the painting was returned to display. Intending visitors were required to book ahead and could only stay for 15 minutes. When it was unveiled, considerable controversy was aroused by the dramatic changes in colors, tones, and even some facial shapes.